AOL News | Widely-used heart drug linked to increased dementia risk AOL News The researchers found that patients with atrial fibrillation experienced higher rates of dementia and Alzheimer's. Within eight years, close to 6 percent of patients taking Warfarin for atrial fibrillation developed dementia, compared to less than 2 ... Long-Term Treatment With Blood Thinner Warfarin Linked To Dementia, Alzheimer's Disease Warfarin, AF May Each Contribute to Dementia Risk in Atrial Fibrillation Atrial fibrillation and poor management of warfarin may increase risk of dementia |